Solvent-Free Liquid Phase Oxidation of Benzyl Alcohol to Benzaldehyde over Superfine MgAl2O4 Supported Co-Based Catalysts：Effects of Support MgAl2O4

Xin Zhang; Mi Qi; Gui Quan Zhang; Tao Lin; Ting Gong

doi:10.4028/www.scientific.net/AMR.233-235.1100

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 233-235Solvent-Free Liquid Phase Oxidation of Benzyl...

Solvent-Free Liquid Phase Oxidation of Benzyl Alcohol to Benzaldehyde over Superfine MgAl₂O₄ Supported Co-Based Catalysts：Effects of Support MgAl₂O₄

Abstract:

MgAl₂O₄ was respectively prepared by hydrothermal method (MgAl₂O₄-HT), co-precipitation method (MgAl₂O₄-CP) and solid reaction method (MgAl₂O₄-SR). The as-synthesized MgAl₂O₄ was used as support to prepare CoO_x/MgAl₂O₄ catalysts for the liquid phase oxidation of benzyl alcohol to benzaldehyde by H₂O₂. The catalytic performance and properties of these supports and catalysts were comparatively investigated by catalytic test, XRD, XRF, N₂ isothermal adsorption-desorption, TEM and H₂-TPR technologies. The properties of support MgAl₂O₄ was strongly depended on the preparation method of the support, which affected the catalytic activity of CoO_x/MgAl₂O₄ catalysts in the reaction. CoO_x/MgAl₂O₄-HT exhibited the higher catalytic reactivity and better reusability than CoO_x/MgAl₂O₄-CP and CoO_x/MgAl₂O₄-SR in the reaction, because MgAl₂O₄-HT was high-surface-area porous nanometer spinel MgAl₂O₄.

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Periodical:

Advanced Materials Research (Volumes 233-235)

Pages:

1100-1107

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.233-235.1100

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Online since:

May 2011

Authors:

Xin Zhang, Mi Qi, Gui Quan Zhang, Tao Lin, Ting Gong

Keywords:

Alcohol, Benzyl, Benzyladehyde, Effect, Hydrothermal, Liquid, MgAl₂O₄, Oxidation, Phase, Support, Synthesis

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